\documentclass[11pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[francais]{babel}
\usepackage{graphicx} 
\usepackage{geometry}
\usepackage{amssymb}

\geometry{hmargin=2.5cm, vmargin=2.5cm}

\makeatletter
\def\maketitle{%
	\pagestyle{empty}
	\vbox{\centering Linköping University\\
	IDA - The Department of Computer and Information Science}
	\vfill
	\vbox{\centering \Large \@title}
	\vspace{5mm}
	\vbox{\centering \Large \@author}
	\vfill
	\vbox{\centering \@date}
	\clearpage
}

\title{Lab 1 : Intelligent Agents (Java version)}
\author{Simon Vernhes}
\date{\today}

\begin{document}
  \maketitle \clearpage
  \setlength{\parskip}{2ex plus .4ex minus .4ex}

  \pagestyle{plain}
  \setcounter{page}{1}

  \input{basicagent}
  \input{advancedagent}
\end{document} 

